Hi, I successfully build boost with cmake using MSVC2005/VS80 from sandbox - even boost::iostream with zlib support. The zlib.cpp is added to the project. Anyway, I get LINK : fatal error LNK1104: Datei "libboost_zlib-vc80-mt-gd-1_34.lib" kann nicht geöffnet werden. => means: could not found I have to set libboost_zlib-vc80-mt-gd-1_34.lib to ignore in the Studio Linker Settings. Does exist such a target in the cmake svn/build tree, or using jam? How to build it? I've never seen such on my linux box. Thanks Olaf